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24 melhores detector até $20.00

Separamos 24 detector do AliExpress com vendas reais e boas avaliações. Os preços vão de $1.99 a $16.38, a nota média é 4.8 estrelas e o mais procurado tem 197.1k pedidos. Cada produto abre no AliExpress, onde você paga com proteção ao comprador.

Atualizado: 2026-11

  1. 11pc Motion Sensor Night Light - Wireless LED Detector Lamp for Bedroom, Staircase,-66%1pc Motion Sensor Night Light - Wireless LED Detector Lamp for Bedroom, Staircase,$1.99 $5.90★ 4.9 · 197.1k vendidosVer no AliExpress →
  2. 21pc Motion Sensor Night Light - Wireless LED Detector Lamp for Bedroom, Staircase, Closet-63%1pc Motion Sensor Night Light - Wireless LED Detector Lamp for Bedroom, Staircase, Closet$2.84 $7.61★ 4.5 · 181.9k vendidosVer no AliExpress →
  3. 3395nm UV Pen FLaslight,Blacklight Flashlight w/ Clip Portable Detector for Hotel/Pet Urine-61%395nm UV Pen FLaslight,Blacklight Flashlight w/ Clip Portable Detector for Hotel/Pet Urine$1.99 $5.15★ 4.9 · 88.4k vendidosVer no AliExpress →
  4. 4Non-Contact Voltage Detector Pen 12-1000V AC Tester, Live Wire Breakpoint Finder, Electric-57%Non-Contact Voltage Detector Pen 12-1000V AC Tester, Live Wire Breakpoint Finder, Electric$4.27 $9.92★ 4.9 · 53.2k vendidosVer no AliExpress →
  5. 5Universal Battery Tester ANENG BT173 Battery Detector Test C D AA AAA N 9V Cell Button Met-50%Universal Battery Tester ANENG BT173 Battery Detector Test C D AA AAA N 9V Cell Button Met$4.89 $9.77★ 4.8 · 26.8k vendidosVer no AliExpress →
  6. 6ANENG 11-25V Relay Detector RT01 Digital Universal 4/5 Pins Car Battery Vehicle Detection-58%ANENG 11-25V Relay Detector RT01 Digital Universal 4/5 Pins Car Battery Vehicle Detection$9.70 $22.88★ 4.7 · 10.1k vendidosVer no AliExpress →
  7. 72 Pack Tuya Smart WiFi Smoke Detector With Real-Time APP Alerts Wireless Fire Sensor Alarm-66%2 Pack Tuya Smart WiFi Smoke Detector With Real-Time APP Alerts Wireless Fire Sensor Alarm$14.63 $42.49★ 4.9 · 10k vendidosVer no AliExpress →
  8. 8Zigbee 24G Mmwave Radar Presence Sensor Human Detector Motion/Static Detection For Tuya Z2-58%Zigbee 24G Mmwave Radar Presence Sensor Human Detector Motion/Static Detection For Tuya Z2$3.68 $8.74★ 4.9 · 10k vendidosVer no AliExpress →
  9. 9Aoyan Zigbee 3.0 Mini PIR Motion Sensor Human Motion Infrared Detector Security Alarm Work-57%Aoyan Zigbee 3.0 Mini PIR Motion Sensor Human Motion Infrared Detector Security Alarm Work$2.84 $6.66★ 4.9 · 10k vendidosVer no AliExpress →
  10. 10Tuya Smart WiFi Smoke Sensor Fire Protection Smoke Detector 85dB Sound Security System Fir-58%Tuya Smart WiFi Smoke Sensor Fire Protection Smoke Detector 85dB Sound Security System Fir$8.30 $19.79★ 4.9 · 10k vendidosVer no AliExpress →
  11. 11Tuya Zigbee Water Sensor Flood Leak Detector Water Linkage App Alarm Sensor for Kitchen/Ba-57%Tuya Zigbee Water Sensor Flood Leak Detector Water Linkage App Alarm Sensor for Kitchen/Ba$4.10 $9.50★ 4.9 · 10k vendidosVer no AliExpress →
  12. 12MUFASHA Non-Contact Voltage Detector Electrical Pen AC Voltage Tester Smart Breakpoint Fin-58%MUFASHA Non-Contact Voltage Detector Electrical Pen AC Voltage Tester Smart Breakpoint Fin$4.94 $11.80★ 4.7 · 10k vendidosVer no AliExpress →
  13. 13Tuya WiFi Zigbee PIR Motion Sensor Smart Home Human Body Infrared Detector Security Smart-53%Tuya WiFi Zigbee PIR Motion Sensor Smart Home Human Body Infrared Detector Security Smart$15.83 $33.86★ 4.6 · 10k vendidosVer no AliExpress →
  14. 14Tuya Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone-66%Tuya Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone$5.78 $17.14★ 4.5 · 10k vendidosVer no AliExpress →
  15. 15ANENG B16 Lntelligent Sensing Digital Measuring Pen Non-Contact 12V-300V Voltage Detector-56%ANENG B16 Lntelligent Sensing Digital Measuring Pen Non-Contact 12V-300V Voltage Detector$4.48 $10.29★ 4.8 · 9.7k vendidosVer no AliExpress →
  16. 16Zigbee Work with Tuya PIR Motion Sensor Infrared Detector Mini Smart Human Body Sensor Rem-58%Zigbee Work with Tuya PIR Motion Sensor Infrared Detector Mini Smart Human Body Sensor Rem$2.84 $6.80★ 4.9 · 5k vendidosVer no AliExpress →
  17. 172 in 1 Tuya Zigbee Rain Sensor with Light Detector IPX4 Outdoor Waterproof Rain Detector W-20%2 in 1 Tuya Zigbee Rain Sensor with Light Detector IPX4 Outdoor Waterproof Rain Detector W$8.44 $10.54★ 4.6 · 5k vendidosVer no AliExpress →
  18. 18Tuya 2 in 1 Zigbee Mini PIR Motion Detector + Bright Lux Light Passive Infrared Security B-60%Tuya 2 in 1 Zigbee Mini PIR Motion Detector + Bright Lux Light Passive Infrared Security B$6.20 $15.54★ 4.5 · 5k vendidosVer no AliExpress →
  19. 19Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone App-57%Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone App$5.78 $13.39★ 4.9 · 5k vendidosVer no AliExpress →
  20. 20Tuya Zigbee WiFi Human Presence Sensor MmWave Radar Detector With Luminance Sensor For Sm-63%Tuya Zigbee WiFi Human Presence Sensor MmWave Radar Detector With Luminance Sensor For Sm$8.10 $21.80★ 4.6 · 5k vendidosVer no AliExpress →
  21. 21KONNWEI MAXOBD Bluetooth OBD2 Scanner Auto Engine Code Reader Car Diagnostic Detector Supp-57%KONNWEI MAXOBD Bluetooth OBD2 Scanner Auto Engine Code Reader Car Diagnostic Detector Supp$16.38 $38.45★ 4.9 · 4.3k vendidosVer no AliExpress →
  22. 22AITHEA USB Rechargeable PIR Motion Sensor LED Bar Lights Dimmable Detector Night Light Por-73%AITHEA USB Rechargeable PIR Motion Sensor LED Bar Lights Dimmable Detector Night Light Por$2.81 $10.52★ 4.5 · 4k vendidosVer no AliExpress →
  23. 23Tuya Zigbee Water Sensor Flood Leak Detector Water Linkage App Alarm Sensor for Kitchen/Ba-63%Tuya Zigbee Water Sensor Flood Leak Detector Water Linkage App Alarm Sensor for Kitchen/Ba$5.36 $14.43★ 4.7 · 4k vendidosVer no AliExpress →
  24. 24Tuya ZigBee 3.0 Leakage Alarm Detector Water Leak Sensor Overflow Flood App Remote Control-53%Tuya ZigBee 3.0 Leakage Alarm Detector Water Leak Sensor Overflow Flood App Remote Control$6.78 $14.40★ 4.6 · 4k vendidosVer no AliExpress →

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